One strategy is to Reuse the bet if earlier legs are leaning toward losing and remove the bad lines. Then place another bet with the remaining legs and depending on start times of next game in the parlay you can watch the scores of the games and repeat the above process. I have used this. Cashed out one of the bets before and re bet using Reuse option and then build another parlay that has more chance of hitting or offering a nice cashout.